My Verizon 4G LTE tablet has been having multiple problems. After a few minutes of use, various apps "stop", and once I click okay, the notification keeps appearing in the middle of the screen. Not only that, but when I try to a factory reset, it doesn't reset and stays the way it was before the reset. If I download new apps or make any progress, when I turn off and on the tablet it returns back. This problem has been really annoying, and I can't get anything done, please help.